llvm/test/DebugInfo/X86/dwarfdump-str-offsets.s

   1 # RUN: llvm-mc -triple x86_64-unknown-linux %s -filetype=obj -o %t.o
   2 # RUN: llvm-dwarfdump -v %t.o 2> %t.err | FileCheck --check-prefixes=COMMON,SPLIT,OFFSETS %s
   3
   4 # FIXME: the verifier does not accept padding between debug-str-offset
   5 # sections, which this test uses.
   6 # RUN: llvm-dwarfdump -verify --debug-info %t.o | FileCheck --check-prefix=VERIFY %s
   7 # RUN: llvm-dwarfdump -debug-str-offsets %t.o | FileCheck --check-prefix=OFFSETS %s
   8 #
   9 # Check that we don't report an error on a non-existent range list table.
  10 # RUN: FileCheck -allow-empty --check-prefix ERR %s < %t.err
  11
  12 # Test object to verify dwarfdump handles v5 string offset tables.
  13 # We have 2 v5 CUs, a v5 TU, and a split v5 CU and TU.
  14 #
  15
  16         .section .debug_str,"MS",@progbits,1
  17 str_producer:
  18         .asciz "Handmade DWARF producer"
  19 str_CU1:
  20         .asciz "Compile_Unit_1"
  21 str_CU1_dir:
  22         .asciz "/home/test/CU1"
  23 str_CU2:
  24         .asciz "Compile_Unit_2"
  25 str_CU2_dir:
  26         .asciz "/home/test/CU2"
  27 str_TU:
  28         .asciz "Type_Unit"
  29 str_TU_type:
  30         .asciz "MyStruct"
  31 str_Subprogram:
  32         .asciz "MyFunc"
  33 str_Variable1:
  34         .asciz "MyVar1"
  35 str_Variable2:
  36         .asciz "MyVar2"
  37 str_Variable3:
  38         .asciz "MyVar3"
  39
  40 # Every unit contributes to the string_offsets table.
  41         .section .debug_str_offsets,"",@progbits
  42 # CU1's contribution
  43         .long .debug_str_offsets_segment0_end-.debug_str_offsets_base0+4
  44         .short 5    # DWARF version
  45         .short 0    # Padding
  46 .debug_str_offsets_base0:
  47         .long str_producer
  48         .long str_CU1
  49         .long str_CU1_dir
  50         .long str_Subprogram
  51         .long str_Variable1
  52         .long str_Variable2
  53         .long str_Variable3
  54 .debug_str_offsets_segment0_end:
  55 # A 4-byte gap.
  56         .long 0
  57 # CU2's contribution in DWARF64 format
  58         .long 0xffffffff
  59         .quad .debug_str_offsets_segment1_end-.debug_str_offsets_base1+4
  60         .short 5    # DWARF version
  61         .short 0    # Padding
  62 .debug_str_offsets_base1:
  63         .quad str_producer
  64         .quad str_CU2
  65         .quad str_CU2_dir
  66 .debug_str_offsets_segment1_end:
  67 # The TU's contribution
  68         .long .debug_str_offsets_segment2_end-.debug_str_offsets_base2+4
  69         .short 5    # DWARF version
  70         .short 0    # Padding
  71 .debug_str_offsets_base2:
  72         .long str_TU
  73         .long str_TU_type
  74 .debug_str_offsets_segment2_end:
  75
  76         .section .debug_str.dwo,"MSe",@progbits,1
  77 dwo_str_CU_5_producer:
  78         .asciz "Handmade split DWARF producer"
  79 dwo_str_CU_5_name:
  80         .asciz "V5_split_compile_unit"
  81 dwo_str_CU_5_comp_dir:
  82         .asciz "/home/test/splitCU"
  83 dwo_str_TU_5:
  84         .asciz "V5_split_type_unit"
  85 dwo_str_TU_5_type:
  86         .asciz "V5_split_Mystruct"
  87
  88         .section .debug_str_offsets.dwo,"e",@progbits
  89 # One contribution only in a .dwo file
  90         .long .debug_dwo_str_offsets_segment0_end-.debug_dwo_str_offsets_base0+4
  91         .short 5    # DWARF version
  92         .short 0    # Padding
  93 .debug_dwo_str_offsets_base0:
  94         .long dwo_str_CU_5_producer-.debug_str.dwo
  95         .long dwo_str_CU_5_name-.debug_str.dwo
  96         .long dwo_str_CU_5_comp_dir-.debug_str.dwo
  97         .long dwo_str_TU_5-.debug_str.dwo
  98         .long dwo_str_TU_5_type-.debug_str.dwo
  99 .debug_dwo_str_offsets_segment0_end:
 100
 101 # All CUs/TUs use the same abbrev section for simplicity.
 102         .section .debug_abbrev,"",@progbits
 103         .byte 0x01  # Abbrev code
 104         .byte 0x11  # DW_TAG_compile_unit
 105         .byte 0x01  # DW_CHILDREN_yes
 106         .byte 0x25  # DW_AT_producer
 107         .byte 0x1a  # DW_FORM_strx
 108         .byte 0x03  # DW_AT_name
 109         .byte 0x1a  # DW_FORM_strx
 110         .byte 0x72  # DW_AT_str_offsets_base
 111         .byte 0x17  # DW_FORM_sec_offset
 112         .byte 0x1b  # DW_AT_comp_dir
 113         .byte 0x1a  # DW_FORM_strx
 114         .byte 0x00  # EOM(1)
 115         .byte 0x00  # EOM(2)
 116         .byte 0x02  # Abbrev code
 117         .byte 0x41  # DW_TAG_type_unit
 118         .byte 0x01  # DW_CHILDREN_yes
 119         .byte 0x03  # DW_AT_name
 120         .byte 0x1a  # DW_FORM_strx
 121         .byte 0x72  # DW_AT_str_offsets_base
 122         .byte 0x17  # DW_FORM_sec_offset
 123         .byte 0x00  # EOM(1)
 124         .byte 0x00  # EOM(2)
 125         .byte 0x03  # Abbrev code
 126         .byte 0x13  # DW_TAG_structure_type
 127         .byte 0x00  # DW_CHILDREN_no (no members)
 128         .byte 0x03  # DW_AT_name
 129         .byte 0x1a  # DW_FORM_strx
 130         .byte 0x00  # EOM(1)
 131         .byte 0x00  # EOM(2)
 132         .byte 0x04  # Abbrev code
 133         .byte 0x2e  # DW_TAG_subprogram
 134         .byte 0x01  # DW_CHILDREN_yes
 135         .byte 0x03  # DW_AT_name
 136         .byte 0x25  # DW_FORM_strx1
 137         .byte 0x00  # EOM(1)
 138         .byte 0x00  # EOM(2)
 139         .byte 0x05  # Abbrev code
 140         .byte 0x34  # DW_TAG_variable
 141         .byte 0x00  # DW_CHILDREN_no
 142         .byte 0x03  # DW_AT_name
 143         .byte 0x26  # DW_FORM_strx2
 144         .byte 0x49  # DW_AT_type
 145         .byte 0x13  # DW_FORM_ref4
 146         .byte 0x00  # EOM(1)
 147         .byte 0x00  # EOM(2)
 148         .byte 0x06  # Abbrev code
 149         .byte 0x34  # DW_TAG_variable
 150         .byte 0x00  # DW_CHILDREN_no
 151         .byte 0x03  # DW_AT_name
 152         .byte 0x27  # DW_FORM_strx3
 153         .byte 0x49  # DW_AT_type
 154         .byte 0x13  # DW_FORM_ref4
 155         .byte 0x00  # EOM(1)
 156         .byte 0x00  # EOM(2)
 157         .byte 0x07  # Abbrev code
 158         .byte 0x34  # DW_TAG_variable
 159         .byte 0x00  # DW_CHILDREN_no
 160         .byte 0x03  # DW_AT_name
 161         .byte 0x28  # DW_FORM_strx4
 162         .byte 0x49  # DW_AT_type
 163         .byte 0x13  # DW_FORM_ref4
 164         .byte 0x00  # EOM(1)
 165         .byte 0x00  # EOM(2)
 166         .byte 0x08  # Abbrev code
 167         .byte 0x24  # DW_TAG_base_type
 168         .byte 0x00  # DW_CHILDREN_no
 169         .byte 0x3e  # DW_AT_encoding
 170         .byte 0x0b  # DW_FORM_data1
 171         .byte 0x00  # EOM(1)
 172         .byte 0x00  # EOM(2)
 173         .byte 0x09  # Abbrev code
 174         .byte 0x11  # DW_TAG_compile_unit
 175         .byte 0x00  # DW_CHILDREN_no
 176         .byte 0x00  # EOM(1)
 177         .byte 0x00  # EOM(2)
 178         .byte 0x00  # EOM(3)
 179
 180 # And a .dwo copy of a subset for the .dwo sections.
 181         .section .debug_abbrev.dwo,"e",@progbits
 182         .byte 0x01  # Abbrev code
 183         .byte 0x11  # DW_TAG_compile_unit
 184         .byte 0x00  # DW_CHILDREN_no
 185         .byte 0x25  # DW_AT_producer
 186         .byte 0x1a  # DW_FORM_strx
 187         .byte 0x03  # DW_AT_name
 188         .byte 0x1a  # DW_FORM_strx
 189         .byte 0x1b  # DW_AT_comp_dir
 190         .byte 0x1a  # DW_FORM_strx
 191         .byte 0x00  # EOM(1)
 192         .byte 0x00  # EOM(2)
 193         .byte 0x02  # Abbrev code
 194         .byte 0x41  # DW_TAG_type_unit
 195         .byte 0x01  # DW_CHILDREN_yes
 196         .byte 0x03  # DW_AT_name
 197         .byte 0x1a  # DW_FORM_strx
 198         .byte 0x00  # EOM(1)
 199         .byte 0x00  # EOM(2)
 200         .byte 0x03  # Abbrev code
 201         .byte 0x13  # DW_TAG_structure_type
 202         .byte 0x00  # DW_CHILDREN_no (no members)
 203         .byte 0x03  # DW_AT_name
 204         .byte 0x1a  # DW_FORM_strx
 205         .byte 0x00  # EOM(1)
 206         .byte 0x00  # EOM(2)
 207         .byte 0x00  # EOM(3)
 208
 209         .section .debug_info,"",@progbits
 210
 211 # DWARF v5 CU header.
 212         .long  CU1_5_end-CU1_5_version  # Length of Unit
 213 CU1_5_version:
 214         .short 5               # DWARF version number
 215         .byte 1                # DWARF Unit Type
 216         .byte 8                # Address Size (in bytes)
 217         .long .debug_abbrev    # Offset Into Abbrev. Section
 218 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 219 # DW_AT_str_offsets and DW_AT_compdir.
 220         .byte 1                # Abbreviation code
 221         .byte 0                # The index of the producer string
 222         .byte 1                # The index of the CU name string
 223         .long .debug_str_offsets_base0
 224         .byte 2                # The index of the comp dir string
 225 # A subprogram DIE with DW_AT_name, using DW_FORM_strx1.
 226         .byte 4                # Abbreviation code
 227         .byte 3                # Subprogram name string (DW_FORM_strx1)
 228 # A variable DIE with DW_AT_name, using DW_FORM_strx2, and DW_AT_type.
 229         .byte 5                # Abbreviation code
 230         .short 0x0004          # Subprogram name string (DW_FORM_strx2)
 231         .long TypeDie-.debug_info
 232 # A variable DIE with DW_AT_name, using DW_FORM_strx3, and DW_AT_type.
 233         .byte 6                # Abbreviation code
 234         .byte 5                # Subprogram name string (DW_FORM_strx3)
 235         .short 0               # Subprogram name string (DW_FORM_strx3)
 236         .long TypeDie-.debug_info
 237 # A variable DIE with DW_AT_name, using DW_FORM_strx4, and DW_AT_type.
 238         .byte 7                # Abbreviation code
 239         .long 6                # Subprogram name string (DW_FORM_strx4)
 240         .long TypeDie-.debug_info
 241         .byte 0 # NULL
 242 # A base type DIE with DW_AT_encoding.
 243 TypeDie:
 244         .byte 8                # Abbreviation code
 245         .byte 5                # DW_ATE_signed
 246         .byte 0 # NULL
 247         .byte 0 # NULL
 248 CU1_5_end:
 249
 250 # DWARF v5 CU header
 251         .long 0xffffffff
 252         .quad CU2_5_end-CU2_5_version  # Length of Unit
 253 CU2_5_version:
 254         .short 5               # DWARF version number
 255         .byte 1                # DWARF Unit Type
 256         .byte 8                # Address Size (in bytes)
 257         .quad .debug_abbrev    # Offset Into Abbrev. Section
 258 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 259 # DW_AT_str_offsets and DW_AT_compdir.
 260         .byte 1                # Abbreviation code
 261         .byte 0                # The index of the producer string
 262         .byte 1                # The index of the CU name string
 263         .quad .debug_str_offsets_base1
 264         .byte 2                # The index of the comp dir string
 265         .byte 0 # NULL
 266 CU2_5_end:
 267 # DWARF v5 CU without str_offsets_base - this shouldn't produce an error/nor
 268 # prevent other str_offsets contributions from being dumped.
 269         .long CU3_5_end-CU3_5_version  # Length of Unit
 270 CU3_5_version:
 271         .short 5               # DWARF version number
 272         .byte 1                # DWARF Unit Type
 273         .byte 8                # Address Size (in bytes)
 274         .long .debug_abbrev    # Offset Into Abbrev. Section
 275 # The compile-unit DIE with no attributes.
 276         .byte 9                # Abbreviation code
 277 CU3_5_end:
 278
 279
 280
 281
 282
 283
 284         .section .debug_types,"",@progbits
 285 # DWARF v5 Type unit header.
 286 TU_5_start:
 287         .long  TU_5_end-TU_5_version  # Length of Unit
 288 TU_5_version:
 289         .short 5               # DWARF version number
 290         .byte 2                # DWARF Unit Type
 291         .byte 8                # Address Size (in bytes)
 292         .long .debug_abbrev    # Offset Into Abbrev. Section
 293         .quad 0x0011223344556677 # Type Signature
 294         .long TU_5_type-TU_5_start # Type offset
 295 # The type-unit DIE, which has a name.
 296         .byte 2                # Abbreviation code
 297         .byte 0                # Index of the unit type name string
 298         .long .debug_str_offsets_base2  # offset into the str_offsets section
 299 # The type DIE, which has a name.
 300 TU_5_type:
 301         .byte 3                # Abbreviation code
 302         .byte 1                # Index of the type name string
 303         .byte 0 # NULL
 304         .byte 0 # NULL
 305 TU_5_end:
 306
 307         .section .debug_info.dwo,"e",@progbits
 308
 309 # DWARF v5 split CU header.
 310         .long  CU_split_5_end-CU_split_5_version  # Length of Unit
 311 CU_split_5_version:
 312         .short 5               # DWARF version number
 313         .byte 1                # DWARF Unit Type
 314         .byte 8                # Address Size (in bytes)
 315         .long .debug_abbrev.dwo  # Offset Into Abbrev Section
 316 # The compile-unit DIE, which has a DW_AT_producer, DW_AT_name,
 317 # DW_AT_str_offsets and DW_AT_compdir.
 318         .byte 1                # Abbreviation code
 319         .byte 0                # The index of the producer string
 320         .byte 1                # The index of the CU name string
 321         .byte 2                # The index of the comp dir string
 322         .byte 0 # NULL
 323 CU_split_5_end:
 324
 325         .section .debug_types.dwo,"e",@progbits
 326
 327 # DWARF v5 split type unit header.
 328 TU_split_5_start:
 329         .long  TU_split_5_end-TU_split_5_version  # Length of Unit
 330 TU_split_5_version:
 331         .short 5               # DWARF version number
 332         .byte 6                # DWARF Unit Type
 333         .byte 8                # Address Size (in bytes)
 334         .long .debug_abbrev.dwo  # Offset Into Abbrev Section
 335         .quad 0x8899aabbccddeeff # Type Signature
 336         .long TU_split_5_type-TU_split_5_start  # Type offset
 337 # The type-unit DIE, which has a name.
 338         .byte 2                # Abbreviation code
 339         .byte 3                # The index of the type unit name string
 340 # The type DIE, which has a name.
 341 TU_split_5_type:
 342         .byte 3                # Abbreviation code
 343         .byte 4                # The index of the type name string
 344         .byte 0 # NULL
 345         .byte 0 # NULL
 346 TU_split_5_end:
 347
 348 # We are using a hand-constructed object file and are interest in the correct
 349 # diplay of the DW_str_offsetsbase attribute, the correct display of strings
 350 # and the dump of the .debug_str_offsets[.dwo] table.
 351
 352 # Abbreviation for DW_AT_str_offsets_base
 353 # COMMON:      .debug_abbrev contents:
 354 # COMMON-NOT:  contents:
 355 # COMMON:      DW_TAG_compile_unit
 356 # COMMON-NOT:  DW_TAG
 357 # COMMON:      DW_AT_str_offsets_base DW_FORM_sec_offset
 358 #
 359 # Verify that strings are displayed correctly as indexed strings
 360 # COMMON:      .debug_info contents:
 361 # COMMON-NOT:  contents:
 362 # COMMON:      DW_TAG_compile_unit
 363 # COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 364 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_1")
 365 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x00000008)
 366 # COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU1")
 367 # COMMON-NOT:  NULL
 368 # COMMON:      DW_TAG_subprogram
 369 # COMMON-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000003) string = "MyFunc")
 370 # COMMON-NOT:  NULL
 371 # COMMON:      DW_TAG_variable
 372 # COMMON-NEXT: DW_AT_name [DW_FORM_strx2] (indexed (00000004) string = "MyVar1")
 373 # COMMON-NOT:  NULL
 374 # COMMON:      DW_TAG_variable
 375 # COMMON-NEXT: DW_AT_name [DW_FORM_strx3] (indexed (00000005) string = "MyVar2")
 376 # COMMON-NOT:  NULL
 377 # COMMON:      DW_TAG_variable
 378 # COMMON-NEXT: DW_AT_name [DW_FORM_strx4] (indexed (00000006) string = "MyVar3")
 379 #
 380 # Second compile unit (b.cpp)
 381 # COMMON:      DW_TAG_compile_unit
 382 # COMMON-NEXT: DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade DWARF producer")
 383 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "Compile_Unit_2")
 384 # COMMON-NEXT: DW_AT_str_offsets_base [DW_FORM_sec_offset] (0x0000000000000038)
 385 # COMMON-NEXT: DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/CU2")
 386 #
 387 # The split CU
 388 # SPLIT:       .debug_info.dwo contents:
 389 # SPLIT-NOT:   contents:
 390 # SPLIT:       DW_TAG_compile_unit
 391 # SPLIT-NEXT:  DW_AT_producer [DW_FORM_strx] (indexed (00000000) string = "Handmade split DWARF producer")
 392 # SPLIT-NEXT:  DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "V5_split_compile_unit")
 393 # SPLIT-NEXT:  DW_AT_comp_dir [DW_FORM_strx] (indexed (00000002) string = "/home/test/splitCU")
 394 #
 395 # The type unit
 396 # COMMON:      .debug_types contents:
 397 # COMMON:      DW_TAG_type_unit
 398 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000000) string = "Type_Unit")
 399 # COMMON:      DW_TAG_structure_type
 400 # COMMON-NEXT: DW_AT_name [DW_FORM_strx] (indexed (00000001) string = "MyStruct")
 401 #
 402 # The split type unit
 403 # SPLIT:       .debug_types.dwo contents:
 404 # SPLIT:       DW_TAG_type_unit
 405 # SPLIT-NEXT:  DW_AT_name [DW_FORM_strx] (indexed (00000003) string = "V5_split_type_unit")
 406 # SPLIT:       DW_TAG_structure_type
 407 # SPLIT-NEXT:  DW_AT_name [DW_FORM_strx] (indexed (00000004) string = "V5_split_Mystruct")
 408 #
 409 # The .debug_str_offsets section
 410 # OFFSETS:      .debug_str_offsets contents:
 411 # OFFSETS-NEXT: 0x00000000: Contribution size = 32, Format = DWARF32, Version = 5
 412 # OFFSETS-NEXT: 0x00000008: 00000000 "Handmade DWARF producer"
 413 # OFFSETS-NEXT: 0x0000000c: 00000018 "Compile_Unit_1"
 414 # OFFSETS-NEXT: 0x00000010: 00000027 "/home/test/CU1"
 415 # OFFSETS-NEXT: 0x00000014: 00000067 "MyFunc"
 416 # OFFSETS-NEXT: 0x00000018: 0000006e "MyVar1"
 417 # OFFSETS-NEXT: 0x0000001c: 00000075 "MyVar2"
 418 # OFFSETS-NEXT: 0x00000020: 0000007c "MyVar3"
 419 # OFFSETS-NEXT: Gap, length = 4
 420 # OFFSETS-NEXT: 0x00000028: Contribution size = 28, Format = DWARF64, Version = 5
 421 # OFFSETS-NEXT: 0x00000038: 0000000000000000 "Handmade DWARF producer"
 422 # OFFSETS-NEXT: 0x00000040: 0000000000000036 "Compile_Unit_2"
 423 # OFFSETS-NEXT: 0x00000048: 0000000000000045 "/home/test/CU2"
 424 # OFFSETS-NEXT: 0x00000050: Contribution size = 12, Format = DWARF32, Version = 5
 425 # OFFSETS-NEXT: 0x00000058: 00000054 "Type_Unit"
 426 # OFFSETS-NEXT: 0x0000005c: 0000005e "MyStruct"
 427 #
 428 # OFFSETS:       .debug_str_offsets.dwo contents:
 429 # OFFSETS-NEXT:  0x00000000: Contribution size = 24, Format = DWARF32, Version = 5
 430 # OFFSETS-NEXT:  0x00000008: 00000000 "Handmade split DWARF producer"
 431 # OFFSETS-NEXT:  0x0000000c: 0000001e "V5_split_compile_unit"
 432 # OFFSETS-NEXT:  0x00000010: 00000034 "/home/test/splitCU"
 433 # OFFSETS-NEXT:  0x00000014: 00000047 "V5_split_type_unit"
 434 # OFFSETS-NEXT:  0x00000018: 0000005a "V5_split_Mystruct"
 435
 436 # VERIFY: No errors.
 437
 438 # ERR-NOT: parsing a range list table: